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Issue 41, 2009
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Anion clusters of naphthalene and solvents: structure, ion core, and intermolecular interactions

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Abstract

We carried out a comparative study on the anion clusters of naphthalene with various solvents to understand the nature of intermolecular interactions involving an aromatic anion. Photoelectron spectra of mass-selected naphthalene anion clusters, (Np)1(Sol)n (Sol = benzene, naphthalene, water, and acetone), were obtained, from which the electron affinities were estimated. The electron affinities were significantly different from the vertical detachment energies due to the geometry difference between the neutral and anion clusters along intermolecular coordinates. Theoretical calculations showed that the most stable structure of the naphthalene–acetone anion cluster tends to be a T-shaped geometry because the intermolecular interaction is dominated by π–hydrogen bonding. With the attachment of a second solvent, solventsolvent interaction was found to compete with ion–solvent interaction for the stable geometries of the anion clusters.

Graphical abstract: Anion clusters of naphthalene and solvents: structure, ion core, and intermolecular interactions

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Publication details

The article was received on 20 Feb 2009, accepted on 12 Aug 2009 and first published on 25 Aug 2009


Article type: Paper
DOI: 10.1039/B903626A
Phys. Chem. Chem. Phys., 2009,11, 9468-9473

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    Anion clusters of naphthalene and solvents: structure, ion core, and intermolecular interactions

    S. H. Lee, J. H. Kim, I. Chu and J. K. Song, Phys. Chem. Chem. Phys., 2009, 11, 9468
    DOI: 10.1039/B903626A

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